Petess



J. C. REED.

Bolt-Heading Machine.

Patented Feb. 5, 1867.

TE/ZFwwe-N ILPETERS, PHOTO UTHUG-1AHER vvA \HNuTON u c jigsaw tatrs iga'j t Him JOHN G. REED, OF CINCINNATI, OHIO, ASSlGNOR TO HIMSELF AND SAMUEL'E. HUlCHlNSON, OF THE SAME PLACE.

Letters Patent No. 62,565, dated March 5, 1867.

IMPROVED BOLT AND RIVET MACHINE.

TO WHOM IT MAY CONCERN:

Be it known that I, JOHN C. REED, of Cincinnati, Hamilton county, Ohio, have invented a new and useful improvement in Bolt-Heading Machines; and I do hereby declare the following to be afull, clear, and exact description thereof, reference being had to the accompanyingdrawings, making part of this specification.

The object of this improvement is .to enable all the working partsof a bolt or rivet heading machine to work truly together, andto be set accurately up as fast as they wear.

Figure 1 is a perspective view of a machine embodying my improvements.

Figures 2, 3, and L} are vertical sections at the lines 9: :v, y y, and z .2, respectively.

A is a suitable frame, supporting and guiding the various operating parts. Journalled horizontally th said frame is admiring-shaft, 13, carrying cams O, D, and E, of which the cams C and D serve to close and o 1.. the clamp, and the cam E serves to advance the heading punch, as hereinafter explains F is a channel t i which the blanks are'fed to the clamps. G is the stationary jaw of the clamp. H is the movable jaw, its: head I occupping guides J J in the frame, and being hinged at ,7 to a toggle, K 7:, whose hinged to a lug, L, having a shank, Z, which, traversing a slot, m, in the wedge M, is screw 'thr a nut, N, on the outside of the frame. The wedge M has a screw-threaded shank, m, take a r. bears, through the intervention of a washer, M, upon the top of both frame A and lug L M. The twojaws of the clamp rest upon plates g g which may be set up or let down, so as to bring eve of each jaw to a common planeby means of four set-screws, a portion of which areshown at g, figs. 2 and 3-. Pivoted to the knee of the toggle is a rod, P, whose other end is pivoted to a sliding head, Q, which contains an adjustable block, R, that can be caused to protrude, more or less, from the head by the elevation or depression of a wedge, S, whose scrcw-threaded shank 8 takes a nut, T, which bears upon the top of the sliding head. A slot, 9", in the block R, and a bolt, U, traversing said slot, enable the attendant to first effect, and then firmlysecure, the specific adjustment of the block R. G is a cam, which, bearing against the block R, acts, at each rotation of the shaft B, to straighten the toggle, and thus close the clamp. The portion a of said cam which closes the clamp is continued at the same radial distance a considerable portion of the cams circumference, in order to enable it to hold the clamp shut during the operation of the heading-punch. D is a cam, whose impingement against a shoulder, g, of the sliding head Q, operates to retract said head, and thus open the clamp. The heading-punch V is secured by set-screw t in a sliding head, W, which head is slotted vertically for a screw Blmnked wedge, X 21:, having a nut, Y, which nut bears upon a perforated ear, Z, which projects from the sliding headW, and receives the shank m of said wedge. The sliding head W is straddled by a bridge, 3., that receives a screw-threaded gauge-pin, 2, whose advance or retraction in the bridge determines the degree of protrusion of the blank beyond the clamp, and consequently the amount of metal in the head of the bolt. The head W terminates at its rear end in a semi-cylindrical projection or knuckle, to, which occupies a corresponding depression, 3, in a step, 4; which step has a dove-tail, 5,. that engages and slides vertically in a corresponding mortise, 6, in a vibrating shoe, 7, whose lower, end is journalled to the frame, and whose upper portion is at the proper juncture, namely, just after the closing of the clamps, acted upon by the cam E so as to advance the punch V, and thus form the desired bolt-head= The shoe 7 is held snugly to the knuckle by means of a spiral or other spring, 8. The retraction oflthe head W is efiected by a spring, 9. The sliding head W is support-ed in a guide, 10, whose lateral adjustment is effected by screw-shanked wedges 11, similar to those before described, and whose vertical adjustment is effected by means of set-sorews 12, which bear upon the frame. The cam E m y have an anti-friction roller, e. The step 4 being capable of sliding vertically in the vibrating shoe 7, prevents any binding action of the former in the latter, which, were they united together, would ensue from the respectively curved and rectilinear paths of these members.

I have selected to illustrate my invention a machine adapted for heading bolts, but the improvement is obiviously equally applicable to rivet-heading machines. I claim herein as new, and of my invention-- 1. The block R,in combination with the sliding head Q, earn 0, and'screw-shztnked wedge S, arranged substantially as described. 7 v

2. The described arrangement of stationary and movable clamp jaws G and H, cross-head I, toggle K K i k, serew-shanked wedge M, and tightening-nut N, for the purpose set forthi I 3. In the described combination the screw-threaded heading-gauge 2, the screw-sliainked wedges X and 11 and set-screws v and 12, for adjustment of the length of stroke of the heading-punch, substantially as set forth- 4. The arrangement of sliding head W, knnckle w, sliding step 4, and vibrating shoe 7, substantially as described.

In testimony of which invention I hereunto sct my hand.

JOHN C. REED.

Witnesses:

Gno. H, KNIGHT, James H. LAYMAN. 

